A little trick I stumbled upon a while ago. Please don't try this unless you know what you are doing. Or start with a quarter first instead of aluminium foil. I don't know what it would feel like to touch it, but I don't want to find out. My metal object was an insulated knife, and I highly recommend using something insulated if you are going to try this. Also, DON'T TOUCH THE FOIL WHEN IT IS ON! YOU WILL GET SHOCKED!